My Inquiry
My Account
Microchip Technology ATF1504ASVL-20AU44
- Part No.:
- ATF1504ASVL-20AU44
- Manufacturer:
- Microchip Technology
- Package:
- 44-TQFP
- Datasheet:
-
ATF1504ASVL-20AU44.pdf
- Description:
- IC CPLD 64MC 20NS 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:194
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ATF1504ASVL-20AU44 from Microchip Technology is a 3.3V, 64-macrocell complex programmable logic device (CPLD) in 44-pin TQFP package, featuring 15 ns maximum pin-to-pin delay, 77 MHz registered operation, and automatic 5 µA standby current. It integrates TTL/SSI/MSI logic replacement and supports in-system programming via JTAG for field reconfiguration in industrial control and legacy interface bridging.
For engineers reviewing the ATF1504ASVL-20AU44 datasheet, ATF1504ASVL-20AU44 pinout, ATF1504ASVL-20AU44 application, or ATF1504ASVL-20AU44 equivalent, key selection criteria include its 3.0–3.6V supply range, dual power-down pins (PD1/PD2), JTAG-compliant boundary-scan testability, and macrocell-level reduced-power configuration for low-power embedded logic consolidation.
Technical Context
The ATF1504ASVL-20AU44 implements a flexible macrocell architecture with five product terms per macrocell-expandable to 40 via cascade logic-and supports combinatorial or registered outputs with buried feedback. Its global bus feeds all 64 macrocells and I/Os, enabling up to 40 signal selections per logic block.
It features three global clock inputs (GCLK1–GCLK3), input transition detection (ITD) on clocks and I/Os, programmable pin-keeper circuits, and edge-controlled power-down mode. The device uses EEPROM-based nonvolatile configuration with 10,000 program/erase cycles and 20-year data retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 64 macrocells - provides gate count equivalent to ~1000–1500 usable PLD gates for logic consolidation |
| Propagation Delay | 20 ns max pin-to-pin (–20 speed grade) - ensures timing closure in 50 MHz synchronous designs |
| Operating Voltage | 3.0 V to 3.6 V - compatible with 3.3V LVTTL/LVCMOS systems without level translation |
| Standby Current | 5 µA typical (ATF1504ASVL) - enables ultra-low-power operation during system idle states |
| Package | 44-pin TQFP (7 × 7 mm, 0.8 mm pitch) - surface-mount compatible with standard reflow profiles |
| JTAG Compliance | IEEE Std. 1149.1-1990/1149.1a-1993 - enables boundary-scan testing and ISP without board removal |
| Power-Down Control | Dual PD1/PD2 pins - allows hardware-triggered sub-5 mA power-down with state retention |
Pinout & Package
ATF1504ASVL-20AU44 is housed in a 44-pin Thin Quad Flat Package (TQFP) with 0.8 mm lead pitch and exposed thermal pad. Pin 1 is marked by dot or beveled corner; top-side marking includes "ATF1504ASVL-20AU44" and date code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 26, 32 | TAP Interface (TDI/TMS/TCK/TDO) | JTAG boundary-scan and ISP control signals; configurable as I/O if JTAG disabled |
| 5, 19 | Power-Down Inputs (PD1, PD2) | Active-high hardware triggers for sub-5 mA standby; disable logic array but retain register state |
| 37–38, 40 | Global Control (GCLK1, OE1, GCLK2/OE2) | Dedicated clock and output-enable inputs; each assignable per-macrocell for flexible timing control |
| 35, 39 | GCLK3, GCLR | Third global clock and global asynchronous clear - enable multi-clock domain synchronization and safe reset |
| 2–4, 6–18, 20–25, 27–36, 39–44 (excl. dedicated) | Bidirectional I/O | Configurable as input, output, or bidirectional; support slew rate control, open-collector option, and pin-keeper |
| 4, 16, 24, 36 | GND | Four ground connections - reduce noise and improve signal integrity in high-speed CPLD routing |
| 9, 17, 29, 41 | VCC (VCCIO/VCCINT) | Four 3.3V supply pins - decoupling required per pin to maintain stable core/I/O voltage under switching load |
Key Features
| Feature | Design Value |
|---|---|
| In-System Programmability (ISP) | Enables firmware updates and logic revisions via JTAG without device removal - critical for field-deployed industrial controllers |
| Programmable Pin-Keeper Circuits | Prevents floating inputs/I/Os from causing shoot-through current or noise - eliminates need for external pull-up resistors |
| Macrocell-Level Reduced-Power Bit | Per-macrocell power gating reduces dynamic current - allows selective optimization of unused logic blocks |
| Input Transition Detection (ITD) | Hardware edge detection on global clocks and I/Os - enables low-latency interrupt generation without CPU polling |
| Security Fuse & User Signature | One-time programmable fuse protects design IP; 16-bit user-accessible signature stores revision or project ID regardless of fuse state |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Interface Bridging |
|---|---|
Use Scenario: Adding isolated digital I/O channels to a DIN-rail mounted PLC with space-constrained PCB layout. IC Role / Device Role / Timing Role: CPLD acts as glue logic between microcontroller and opto-isolated I/O drivers, managing strobe timing and status handshaking. Use Value: Replaces multiple discrete SSI/MSI chips; 64 macrocells support 32-channel parallel I/O with local debounce and edge detection using ITD. |
Use Scenario: Interfacing a modern ARM-based controller to an ISA-bus peripheral in medical diagnostic equipment. IC Role / Device Role / Timing Role: Translates address/data/control signals between 3.3V processor and 5V ISA bus while meeting strict tASU/tH setup/hold requirements. Use Value: 15 ns pin-to-pin delay and programmable slew rate ensure reliable 8 MHz ISA timing; JTAG ISP enables post-deployment protocol tuning. |
| Automotive Body Control Module | Test Equipment Signal Conditioning |
Use Scenario: Consolidating lighting, door lock, and window switch logic in a Class A automotive BCM operating at –40°C to +85°C. IC Role / Device Role / Timing Role: Configurable logic engine handling wake-up detection, PWM dimming, and fault reporting across multiple CAN-linked nodes. Use Value: Automatic 5 µA standby meets ISO 16750 quiescent current limits; EEPROM retention ensures 20-year calibration stability. |
Use Scenario: Adapting DUT signal levels and timing in automated functional test fixtures for mixed-voltage SoCs. IC Role / Device Role / Timing Role: Programmable level shifter and timing adjuster that retimes and conditions test vectors before applying to DUT inputs. Use Value: Per-pin slew control minimizes EMI during high-speed test pattern delivery; boundary-scan validates fixture interconnect integrity pre-test. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3064XL-10VQ44C | 64-macrocell CoolRunner-II CPLD; 3.3V core, 10 ns propagation; no automatic standby, higher ICC1 (100 µA) | Lacks integrated pin-keeper and ITD; requires external pull-ups and edge-detection logic | Preferred when higher speed (100 MHz fMAX) and Xilinx toolchain compatibility outweigh ultra-low standby needs |
| ATF1508ASVL-20AU100 | Same family, 100-pin TQFP, 128 macrocells; identical 5 µA standby and JTAG features | Requires PCB redesign due to larger footprint and 36 additional I/Os; not drop-in compatible | Select when design requires >64 macrocells or >32 user I/Os; shares same software flow and security model |
Compared with XCR3064XL-10VQ44C and ATF1508ASVL-20AU100, the ATF1504ASVL-20AU44 uniquely balances ultra-low standby (5 µA), integrated pin-keeper, and 44-pin compactness - making it optimal for space- and power-constrained industrial retrofit applications where full 100-pin density is unnecessary.
Availability
ATF1504ASVL-20AU44 is available at Aetrix Electronics and suitable for industrial PLC expansion, legacy bus interface bridging, and automotive body control modules requiring stable component supply across extended temperature and long-life production cycles.
Supply support for ATF1504ASVL-20AU44 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and programmable logic solutions with emphasis on reliability and long-term supply assurance.
The ATF1504ASVL series belongs to Microchip's legacy CPLD product line designed for industrial, automotive, and aerospace applications demanding nonvolatile, in-system programmable logic with robust EEPROM technology and extended temperature operation.
FAQ
What is the standby current specification for ATF1504ASVL-20AU44?
The ATF1504ASVL-20AU44 delivers a typical standby current of 5 µA under industrial temperature conditions (–40°C to +85°C) when no logic transitions occur. This automatic low-power mode is intrinsic to the ATF1504ASVL variant and does not require external control signals - unlike the ATF1504ASV which lacks this feature. The value is confirmed in DS20006185A-page 8, Table 1-2, under "Std power" row for ICC1.
Does ATF1504ASVL-20AU44 support JTAG boundary-scan testing?
Yes, the ATF1504ASVL-20AU44 fully supports IEEE Std. 1149.1-1990 and 1149.1a-1993 boundary-scan testing via its four dedicated TAP pins (TDI, TMS, TCK, TDO). Each I/O and input pin includes a boundary-scan cell, and the device implements SAMPLE/PRELOAD, EXTEST, BYPASS, IDCODE, and HIGHZ JTAG modes. This capability is documented in DS20006185A-page 12 and page 4.
Can the PD1 and PD2 pins on ATF1504ASVL-20AU44 be used as general-purpose I/Os?
No - when the power-down feature is enabled in the design file, PD1 and PD2 function exclusively as active-high hardware triggers for sub-5 mA standby mode and cannot serve as logic inputs or outputs. However, their associated macrocells remain usable for buried foldback and cascade logic generation. This restriction is explicitly stated in DS20006185A-page 6 and page 11.
What is the maximum number of user I/O pins available on ATF1504ASVL-20AU44 in the 44-pin TQFP package?
The ATF1504ASVL-20AU44 in 44-pin TQFP provides 32 user-configurable I/O pins. This count excludes four dedicated global control pins (GCLK1, GCLR, OE1, GCLK2/OE2), two power-down pins (PD1/PD2), four JTAG pins (TDI/TMS/TCK/TDO), and four power/ground pins - totaling 36 signal pins as confirmed in DS20006185A-page 14, Table 1-6.
Is ATF1504ASVL-20AU44 RoHS compliant and halogen-free?
Yes, the ATF1504ASVL-20AU44 is Green (Pb/Halide-Free/RoHS Compliant) per Microchip's official documentation in DS20006185A-page 1. This includes compliance with EU RoHS Directive 2011/65/EU and halogen-free material definitions per IEC 61249-2-21, verified through material declarations and manufacturing process controls.
ATF1504ASVL-20AU44 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 44-TQFP
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Verified
- Programmable Type:
- In System Programmable (min 10K program/erase cycles)
- Delay Time tpd(1) Max:
- 20 ns
- Voltage Supply - Internal:
- 3V ~ 3.6V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 64
- Number of Gates:
- -
- Number of I/O:
- 32
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TQFP (10x10)
ATF1504ASVL-20AU44 FAQ
1.How can I place an order for ATF1504ASVL-20AU44 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1504ASVL-20AU44 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ATF1504ASVL-20AU44 reliable?
The price and inventory of ATF1504ASVL-20AU44 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1504ASVL-20AU44 is usually 5 days.
3.What payment methods are accepted for ATF1504ASVL-20AU44?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1504ASVL-20AU44 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1504ASVL-20AU44?
ATF1504ASVL-20AU44 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1504ASVL-20AU44 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ATF1504ASVL-20AU44?
For technical support, including ATF1504ASVL-20AU44 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1504ASVL-20AU44 requirements.
6.How does Aetrix verify that ATF1504ASVL-20AU44 is sourced from the original manufacturer or authorized distributors?
All ATF1504ASVL-20AU44 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ATF1504ASVL-20AU44 meets industry standards.
7.What is the process for return or replacement of ATF1504ASVL-20AU44?
All ATF1504ASVL-20AU44 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1504ASVL-20AU44, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ATF1504ASVL-20AU44 part is unused and in its original packaging.
Return procedure for ATF1504ASVL-20AU44:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1504ASVL-20AU44 Tags
-
5M40ZE64C5N
Intel
-
ATF1502ASV-15AU44
Microchip Technology
-
5M80ZE64C5N
Intel
-
5M80ZT100C5N
Intel
-
ATF1502AS-10AU44
Microchip Technology
-
ATF1502AS-10JU44
Microchip Technology
-
5M80ZE64I5N
Intel
-
5M80ZT100I5N
Intel
-
LC4032V-75TN48C
Lattice Semiconductor Corporation
-
ATF1504ASV-15AU44
Microchip Technology
-
ATF1504AS-10JU44
Microchip Technology
-
5M160ZE64C5N
Intel
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
